Entropy question: Does spilling a liquid increase the entropy of a substance?

"bollod" <bollod@lycos.com> wrote in message
newsan.2003.12.09.21.53.15.353683@lycos.com...

I doubt whether spilling milk onto a table has a significant effect on the
disorder of the universe as a whole, but it certainly has increased the
disorder of the milk! (I'm sure the person who had to mop up the milk would
agree)

Most of the entropy in a liquid arises from the motion of the individual
particles, molecules if you will. If you spill the liquid, entropy will
indeed increase but only by a small amout.

Consider a bucket of BBs. If you spill them onto a table, the entropy
(disorder) will increase. The entropy in each BB because of disorder of the
molecular motions will be much greater than the disorder from a few
macromolecules (BBs) bouncing around randomly.

Entropy question: Does spilling a liquid increase the entropy of asubstance?

Systemic science would see spilling milk onto a table a manifestation of
entropy by opposition to negentropy.
Negentropy is the force that build up things and elaborate specificity,
structure.
Entropy is the force that destroys things down and create homogeneity, chaos.
Milk in a glass is more structured, compacted than milk on a table (big
surface vs volume).

Solid ice is formed of cristals wich by definition is a molecular building
where water molecules are almost "freezed" in place...when ice melts
(consuming external energy-pressure or temperature) it reduces its volume (so
volumetrically speaking entropy decreases a little-in most substance solid
state is denser than liquid state wich is itself denser than gaseous state; so
there is normaly an inverse relation between density and entropy) but since
all the molecules wich were fixed are now able to break their interaction,
they gain 3D freedom lability and the entropy of the system increases a lot.

CO2 follows the normal inverse law of density / entropy; So entropy goes up
when going from Dry ice --> liquid CO2 --> gaseous CO2 while density goes
down! And here you have also the phase change as in water case; so each CO2
molecule gain a few freedom levels vs when it is in iced form.

Remark:
In some case spilling a liquid on a surface will increase its order...it is
the case of fatty acids on water; at an extreme extension
of the surface/volume you get ordered molecular layers as the one you find in
cellular organisms (lipidic bilayer) or in liposoms...then molecular
orientation is no more isotropic but has become anisotropic.